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Lake Restoration

The primary purpose of dredging is to remove nutrient-rich (or toxic) sediments or control rooted aquatic macrophytes while preserving the natural fish habitat. Dredging to remove nutrient release from sediment can be highly effective. A hydraulic dredge equipped with a cutterhead is most commonly used for lake dredging. The cutterhead loosens sediments and aquatic growth allowing it to be transported as slurry through a floating pipeline from the lake for disposal.

Final disposal can be a problem as the dredgeate is difficult to handle. Decant ponds must be built to allow dredged material to settle. Dredging may not be an option if space is restrictive for these decant ponds. Even if decant ponds are available, settling time extends the project.

The Global Process allows the dredgeate to be dried as it is being removed, therefore decant ponds are not needed. If various areas are to be dredged, the process system is simply moved from area to area. The dredge is all-electric. There is therefore no chance of an oil or diesel spill. Also the dredge is silent allowing it to work and not disturb area residents.

Features of the Global All-Electric, Surgical Dredge is as follows:

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Removal of large solids (3") and aquatic growth is possible because of the screw/centrifugal design.

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Hydraulic efficiencies over 80% prevent turbulence while dredging.

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Positive suction flow enables the pump to handle thick sludges.

The centrifuges featured in the Global Process are able to handle 500 gpm of feed. This allows the projects to be completed quickly. Water from the centrifuge process is directed back into the lake while the dried solids can be stockpiled or spread directly onto agricultural land. In some cases, these solids are very beneficial to agricultural land.